Minister of State for Foreign Affairs Adel al-Jubeir said the weapons used were Iranian and vowed to release the full findings of the investigation.
Iran denies involvement in the attacks.
Earlier, a senior Iranian military official said Iran was ready to destroy any aggressor after the US announced it was sending troops to Saudi Arabia.
Iranian-backed Houthi rebels in Yemen have said they were responsible for the drone and missile strikes on 14th September that affected the global oil supply.